﻿// Copyright 2004-2009 Castle Project - http://www.castleproject.org/
// 
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// 
//     http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

namespace Castle.Components.DictionaryAdapter.Tests
{
	public class IdEqualityHashCodeStrategy : DictionaryBehaviorAttribute, IDictionaryInitializer,
											  IDictionaryEqualityHashCodeStrategy
	{
		public void Initialize(IDictionaryAdapter dictionaryAdapter, object[] behaviors)
		{
			dictionaryAdapter.This.EqualityHashCodeStrategy = this;
		}

		public bool Equals(IDictionaryAdapter adapter1, IDictionaryAdapter adapter2)
		{
			var id1 = adapter1.GetProperty("Id", false);
			if (id1 == null) return false;

			var id2 = adapter2.GetProperty("Id", false);
			if (id2 == null) return false;

			return id1.Equals(id2);
		}

		public bool GetHashCode(IDictionaryAdapter adapter, out int hashCode)
		{
			var id = adapter.GetProperty("Id", false);
			if (id != null)
			{
				hashCode = id.GetHashCode();
				return true;
			}
			hashCode = 0;
			return false;
		}
	}
}
